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Moving fast, thinking fast:The relations of physical activity levels and bouts to neuroelectric indices of inhibitory control in preadolescents

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Journal of Sport and Health Science 2019年第4期8卷 301-314页

作者： Dominika M.Pindus Eric S.Drollette Lauren B.Raine Shih-Chun Kao Naiman Khan Daniel R.Westfall Morgan Hamill Rebecca Shorin Emily Calobrisi dinesh john Arthur F.Kramer Charles H.Hillman Department of Kinesiology and Community Health University of Illinois at Urbana-ChampaignUrbanaIL 61801USA School of Health and Human Sciences University of North Carolina GreensboroGreensboroNC 6170USA Department of Psychology Northeastern UniversityBostonMA 02115USA Department of Health and Kinesiology Purdue UniversityWest LafayetteIN 47907USA Department of Health Sciences Northeastern UniversityBostonMA 02115USA Department of Physical Therapy Movement&Rehabilitation SciencesNortheastern UniversityBostonMA 02115USA

Background:Structured vigorous physical activity(VPA)can improve cognitive control in children,but studies relating daily physical activity(PA)to cognitive control have yielded conflicting *** objectively measured daily PA summarizes all occurrences of PA within a registered period,a minimum duration of continuous PA is required for registration of a PA *** brief bouts of high-intensity PA can account for a large proportion of children’s daily activity-related energy expenditure,this study assessed whether daily and bouted VPA were selectively related to cognitive control in preadolescents relative to other PA ***:A total of 75 children between the ages of 8 and 10 years(49%girls)wore an ActiGraph wGT 3 X+on the hip for 7 *** acceleration signal from the vertical axis was summarized over 1 s,5 s,and 15 s *** and boutecd modercate PA,moderate-to-vigorous PA,and VPA were *** bouts were expressed as the frequency and time spent in 2 different continuous PA bouts,one lasting≥10 s and the other lasting≥30 s at a given *** control was assessed using behavioral responses to a modified flanker task(mean reaction time(RTmean)and accuracy).Attentional resource allocation and co gnitive processing speed were measured using the amplitude and latency of the P3 component of event-related brain potentials,*** between PA,behavioral indices of inhibitory control,P3 amplitude,and latency were assessed using hierarchical regression ***:Daily VPA was not related to RTmean or accuracy on either congruent or incongruent *** contrast,more time spent in VPA bouts lasting≥30 s predicted shorter P3 latency across epochs and flanker congruencies(allβ≤-0.24,all p≤0.04).The associations between shorter P3 latency and the time spent in moderate-to-vigorous PA bouts lasting≥30 s were less consistent and largely limited to congruent trials(congruent:β(-0.3 1,-0.34)).No significant asso

关键词： Accelerometry Bouts Children ERPs Inhibitory control P3 Physical activity

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Constructing an Automation Table for an Image-Based Arabidopsis Resistance Assay

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Engineering 2020年第5期6卷 495-499页

作者： Goldi Makhija dinesh SPujara In-Hyouk Song Byoung Hee You Hong-Gu Kang Department of Engineering Technology Texas State UniversitySan MarcosTX 78666USA Department of Biology Texas State UniversitySan MarcosTX 78666USA Caresoft Global Inc. Burr RidgeIL 60527USA

*** Crop improvement is becoming critical for food security due to a continuously changing climate and increasing population[1].The management of plant diseases is one of the most important factors in food *** example,wheat,a major crop plant,has been historically subject to periodic total *** a recent instance,when a new strain of wheat stem rust spread from East Africa to the Middle East,the price of wheat spiked significantly,threatening livelihoods in developing countries[2].This example highlights the importance of learning how plants fend off potential pathogens and pests,in order to secure food resources.

关键词： Automation wheat instance

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